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    <pre>
        下面是对图片防盗链的解
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    <p>访问百度的图片</p>
    <img src="https://www.baidu.com/img/flexible/logo/pc/result@2.png"
        alt="" width="400" height="400">
    <p>访问a.han.com的图片</p>
    <img src="http://a.han.com:3000/public/icon-jr.jpeg" alt="" width="400" height="400">
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